Gear Vendor and 833

The idea is to use their electronics so the unit shuts off when under 10 mph.
They claim to make an A body specific adapter, but I don’t see it on their site.
Since I have all correct console A body shifter parts, that’s critical.
I run 2.94s and need more OD. 3,000 @ 80 doesn’t cut it on the interstate.
They told be not to bother with used, although they seem to be everywhere for 800-1000. They price the adapter to make it cost prohibitive